Answer:
A
Explanation:
In a galvanic cell, energy is produced by spontaneous chemical processes.
The cathode and anode of this cell will depend on the relative position of the two metals in the electrochemical series.
Aluminium is higher in the electrochemical series so aluminium will be the anode. Silver is lower in the electrochemical series so silver will be the cathode.
Recall that oxidation (electron loss) occurs at the anode while reduction (electron gain) occurs at the cathode.
Answer:
Speed is how fast you are going at the moment but acceleration is how fast you are building up speed to get to a set point
Explanation:
Answer:
A. Second
Explanation:
The S.I unit of time is in Seconds.
The S. I unit is known as the metric system is the most commonly used system of reporting scientific measurements in the world today. Other units are the imperial units.
It is the international system of unit used in almost all countries. The seven basic SI units are:
Quantities Units
- Length meters(m)
- Time seconds(s)
- Amount of substance moles(mol)
- Mass kilograms(kg)
- Luminous intensity candela(cd)
- Temperature kelvin(K)
- Electric current ampere(A)
The SI unit of time which measures the duration of an activity or event is therefore given as seconds(s)
We can rewrite the equation KBr(aq) + AgNO3(aq) → AgBr(s) + KNO3(aq) into its net ionic equation into
K+ + Br- + Ag + + NO3- = AgBr + K + NO3-only aqueous solutions can dissociate. Spectator ions are present in both sides, hence these are K+ and NO3-. THe rules of assigning oxidation numbers is to identify the number of valence electrons of elements and may be arbitrary depending on the charge of the molecule.
No, ammonium chloride in water is not a physical reaction. It is a chemical reaction. Hope this helps!
